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RV AC Vent Cover Installation, Removal & Fit Help

These friction-fit covers have been tested on the B&B CoolVent 94272. Each cover is 4.5 inches in diameter. Check your vent model before fitting; appearance alone does not establish compatibility, and fit on other models has not been confirmed. Vent assemblies are not included.

Vent manufacturing tolerances vary, so minor fitting may be needed. Use the marked contact area shown below if an adjustment is necessary.

AC ONLY — NOT FOR HEAT

Use only on air-conditioning outlets. Never use these covers while an outlet supplies heated air, including heat-pump heating. Remove before switching those outlets to heat. Do not use on return-air grilles or intakes.

Follow your RV/AC manufacturer’s airflow requirements. There is no universal number of outlets that can be covered. Do not cover an outlet where the manufacturer prohibits it.

Jump to: Preparation · Installation · Sliding adjustment · Removal · Fit troubleshooting

1. Before fitting

  1. Turn the air conditioning off. Check the system’s instructions for any additional precautions.
  2. Inspect, clean and dry the parts. Check the cover and vent for damage, deformation or debris. Remove loose dust with a soft cloth and follow the vent manufacturer’s cleaning instructions.

2. Install and check the fit

  1. Leave the existing vent grille in place. Position the cover evenly over the front of the vent.
  2. Gently press the cover onto the front of the vent. It is held by a friction fit. Stop if it will not seat with gentle pressure.
  3. Check that the cover is evenly seated and secure. If it is loose, uneven or excessively tight, remove it and follow the fitting guidance before use.
White cover installed on the front of the vent, showing recessed double chevrons and REMOVE lettering.
Front view: the cover presses onto the existing grille. The recessed REMOVE label and arrows identify the removal direction.
Rear view showing the white retaining tab engaging a vent grille louver.
Rear view for reference: the tab engages a grille louver. Installation is from the front; the grille stays in place.

3. Adjust the vent opening

Slide the fitted cover side to side to vary how much of the opening is exposed. Follow your RV/AC manufacturer’s airflow requirements at every position. If the cover binds or becomes loose as it moves, stop and check the fit.

White cover slid to the right, exposing the left portion of the vent grille.
Sliding adjustment: the cover moves to one side to expose more of the existing grille.

4. Remove the cover

  1. Turn the air conditioning off and locate the recessed REMOVE label and arrows.
  2. Push in the middle of the cover.
  3. Push toward the REMOVE arrows, then remove the cover.

If it does not release with gentle pressure, stop and contact us with photos. Do not force it, pry against the vent or use the vent as a leverage point for a tool.

Friction-fit troubleshooting

First confirm the vent model, alignment and condition, and check that the contact surfaces are clean and dry. Remove the cover before making any adjustment.

For both a loose fit and a tight fit, adjust only the lower sloping contact face on the retaining tab, outlined in red below. Keep the upper hook, sides of the tab and cover face unchanged. Do not modify the vent.

White retaining tab with a red outline around the lower sloping contact face below the upper hook.
Adjustment area: add tape to the red-outlined face for a loose fit, or lightly remove material from that same face for a tight fit.

Too tight or will not seat

  1. With the cover removed, lightly remove a very small amount of material from the red-outlined face only.
  2. Clear away loose debris, then test the fit again.
  3. Make one small adjustment at a time. Removing too much can leave the cover loose.

Too loose or falls out

  1. With the cover removed, add a small amount of tape to the same red-outlined face only.
  2. Keep the tape on that contact face. Do not wrap the whole tab or cover the upper hook.
  3. Test again. Add only enough to achieve a secure fit that can still be removed as directed.

Need help with your fit?

Contact us through the store where you purchased the covers. Include:

  • Your order number and the vent’s model or part number.
  • Clear photos of the vent, cover and problem area.
  • Whether the fit is too tight, too loose, uneven or difficult to release.
  • Vent opening measurements, if available, with a photo showing where you measured.

Leave the cover off while a fit issue is unresolved.

This is an aftermarket accessory. B&B and CoolVent identify the tested compatible vent and do not imply manufacturer affiliation.